Pros
The current benefits are great, but don't expect it to last. Full pipeline and lots of challenging problems to solve. Work life balance is what you make it.
Cons
The current executive staff are destroying the company. Morale is incredibly low. There is little contingency planning for the massive reorganization that is in process, and most current employees do not view the changes as being for the better. Last year there were no raises for mid career folks and above. This is likely to continue into next year. Salaries are considered overinflated. So, there have been slow cuts to benefits that are likely to continue. Great folks have worked for over 10 years with no hope of a promotion in sight. This leads to entire departmental groups of people skilled enough for promotion. So many in a pool like that leads to backstabbing and cut corners. Overspending on poor decisions and corporate perks continues unhindered despite cuts to staff. Additionally, there are so many administrative layers that one spends more time on administrative stuff than real science. Most who are smart are making plans to move on.